first set of the federer vs haas FO match 2009 haas didnt score a point on federers serve until halwfway through the tie breaker and then his first point in an actualy federer service game in the 3rd game of the 2nd set i believe.

the 6 love games of the 1st set would be 24 consecutive points already. then the streak mustve ended somewhere after that (maybe 26 or sth like that) in the breaker if you count that. if you only count service games then it mustve been soemwhere around 30

There was one match where Querrey served 10 consecutive aces against Blake. I think it was L.A. or Indy or something. I am not sure what happened immediately before or after those aces. He might have had a longer streak of points won on serve.

21 by Mecir in a 1988 Wimbledon QF against Wilander
21 by Ljubicic against Roddick in a 2002 Paris Masters R32 match
16-23 by Doeg against Tilden in a 1930 US Championships SF
19 by Tanner in the 1977 Australian Open final against Vilas
18 by Djokovic in the third and fourth sets of a 2011 U.S. Open SF vs Federer
18 by Becker against Sampras in the 1996 ATP Championships final
17 by Lendl against Connors at the 1992 USO (R64)
16 by Agassi against Connors in a 1988 USO QF
16 by Agassi against Sampras in the 2001 Indian Wells final
15 by Lendl in the 1985 USO final against McEnroe

Federer didn't lose a point on serve in the AO 2011, the whole first set, until I think his first or second service game of the second set. The match was against either Malisse of Robredo, can exactly remember.

It was a Davis Cup quarterfinal tie on indoor carpet in Prague, April '96. From New York Times:

[Todd] Martin, who beat Korda on Friday to win the other American point, never lost his serve against Vacek and during one memorable stretch in the first and second sets, won 34 consecutive points on his serve.

"Just how much should I pay you for the lesson?" Vacek asked when he crossed the 6-foot-6-inch Martin's path after the match.

"I didn't play like this on Tuesday, and I probably won't play like this next Wednesday," said Martin, who played so well despite a strained right groin that has been nagging him for the past month.​

The streak included 7 straight love holds during the first two sets. Score was 7-6 (1), 6-3, 6-1.

And a new highest one for Sampras, from '98 Wimbledon quarters. AP report:

Sampras, seeking his fifth title in six years, won a remarkable 29 consecutive points when serving before a double fault ended the streak. He lost one point on his first serve in the entire match.

``I don't think anyone will beat him,'' Philippoussis said. ``He's just too solid. He's dedicated out there, and he wants to prove a point. When someone serves like that, they want to say something.''

What Sampras wants to prove is that he's still the world's best player, and his recent shotmaking suggests a long slump is over. Friday's semifinal will be his first in a Grand Slam since winning Wimbledon last year.

…. He has yet to lose a set during the fortnight, primarily because his serve has been broken just twice in 76 games.

He dodged three break points early in the second set against Philippoussis and then went on a roll, winning every serve at love for six consecutive games.

Philippoussis struggled just to get his return in play. And even when he managed that modest feat, Sampras was waiting at the net, where he rarely flubbed a chance.

Toward the finish, Sampras delighted the Court 1 crowd with a couple of leaping overhead slams, the only shot where he allows himself to showboat.

``I have no complaints about the way I'm playing,'' he said.

Philippoussis had an edge in aces, 14-10, but there's more to serving than that, and Sampras deftly mixed pace and location despite a swirling wind that hampered his service toss. Discounting seven double faults, he won 72 of 80 points on his serve, including 39 of 40 on his first serve.

He won all of the most important points, too, hitting a pair of clutch volleys and two service winners in the tiebreaker. Philippoussis lost his serve twice, double faulting on break point each time.

``He goes for the big second serves, and at times you're going to pay the price,'' Sampras said.

``At this level, as hard as we're hitting the ball on a court that quick, it's going to come down to a couple of points. And I got those today.''

Philippoussis shook a slump himself, upsetting No. 7 Yevgeny Kafelnikov in the first round and advancing to his first quarterfinal since February. It was the best Grand Slam showing yet by the 21-year-old Australian.

But against Sampras, the player nicknamed Scud was a dud.

``If I gave him some advice, I would tell him to tone it down a little bit,'' Sampras said. ``To be consistent and have good results week in and week out, it's got to be really controlled aggression.''